Breather pipe cap



May 2, 1933. A. T. TAYLOR Er AL BREATHER PIPE CAP Filed DSG. 14. 1931 A TTORNE Y.

Patented May 2, 1933 UNITEDYsfmres PATENT: orner-1 nNDY fr. TAYLOR. QF` Tueur," Ann oLLln B. WILIraoFLoNGvIEW'rExAs n nnmrrrna' 'PIPE car 'Application mea December 14, 1931. serial No. 550,994.

This invention comprehends the provision offa breather pipe cap of novel` construction, which enables the compression Within. the crank/case of theengi'ne to more Vreadily escape, and thusprevent theY oil from being Vforced back through the' cylinders with resultant Waste. 'f

Y It is also the obj ect of the invention to provide a breather pipe cap bymeans of which any oil passing from the pipe With thev fumes, Will beseparated therefrom and returned to the crank case, While theV fumes are exhausted to the atmosphere.

In carrying out the invention, We provide a breather pipe cap constructed to preventJ dirt, dust or `other .foreign matterk from entering the crank case through the pipe, and

one which can be quickly and convenientlyv removed from the pipe asthe occasion may require.

.Other objects and advantages vvill appearV When the following detail descriptionis read in connection with the accompanying drawing, the invention residing in the construc-l i tion, combination and arrangement of parts as claimed;

InV the drawing forming part of this apy plication like numerals of reference indicate Figure 1 is a fragmentary vievxT of an internal combustion engine illustrating the invention. Y

Figure 2 is a vertical sectional view through the breather pipe cap. f

Figure 3 is a sectional view on line 3-8 the smoothness and eificiencyof the operation of the engine. The cap in its entirety may of course be constructed from any suitable material, and also vary in sizeA and cross-sectional contour Without departing from the inventive idea.

` u The cap includes a body portion 12"preferlV similar parts in the several views and Where-` ablyiof cylindrical contour, and'isclosed at its top and bottom as indicated at 13 and 14 respectively. f' Thebody portion; is of a size to afford the breathing pipe maximum air space, Withy a view of enabhng the compression .5,5

Within the crank case of vthe engine vto more readily-escape, and also receives the oil which kpassesvfrom the-breather pipe with the fumes and returns the oil to the crank case for fur-V ther use.- In carrying these ideas into effect .60 We divide the body portion 12 into a relatively large compartment 15. and a relatively smaller compartment 16, by means offa lpar- `tition 17. Thispartitiondepends from the vtop 13 of the body-portion 12, and terminates 65 in spaced relationto the bottom 14, thereby establishing communicationbetweenthe respective compartments at a point beneath` the partition 17.

- yLocated centrally within' thebody portion .70

12 isa 'hollow tubularmemberlS Whichis substantially. coeXtensive in length with the n body portion'12, but yterminates in spacedrelation' to the top. 13 thereof; This tubular member 18 receives the exhaust fromz the 7 5 `V breather pipe 11,I and conveys thesameinto the compartment 15 of the cap, inasmuch as the tubular member 18 is located in this compartment and spaced from'the partition 17 as illustrated. yConsequently the fumes, and Whatever oil is deliveredintothe cap V12 are caused' to pass downwardly through the compartment 15 kto the bottom thereof, and the oil is returned to the crankv case through the l breather pipe, While the fumes pass upward- 185' lythrough the compartment 16 into an ex` Vhaustpipe 19 leading from'r the cap adj aoent the-top thereof; -A flexible pipe 20 has one end yconnected with' the exhaust pipe 19 to convey the fumes tothe atmosphere, and this 99 flexible pipe 20 can be of any desired length and terminate at any particular location about the car, so asto prevent the fumes form entering'the latter. n f n i' While the cap may be associated With-the 95' breather pipe 11 in any suitable manner, we preferably project the tubularV member 18 beneath thebottom 14.- of the cap, and-thisL n portion of the tubular member is adapted to be frictionally lfitted within the breather pipe 11 as illustrated in Figure 1. The projecting portion of the pipe is also provided With 1an annular bead 21 Which reposes upon the upper end of the pipe 11 and thus limits the insertion of the tubular member Within the latter.

Byvirtue of the invention hereinabove described it Will be manifest that the compression Within the crank case of the engine is allowed to more` readily escape through the breather pipe into the cap 12, the fumes and oil carried thereby passing through the tubular member 18. rlhe fumes strike thetop 13 of the cap and are directed thereby downwardly into the bottom of the cap, the fumes passing beneath the partition 17, and thence upwardly through the compartment 16 to the exhaust pipe 19. Consequently the compression Within the crank case is prohibited from forcing the oil back through the cylinders With resultant Waste, and l:by releasing the compression of the crank case in the manner stated, the smoothness and eiiiciency of motor is enhanced. While the fumes are carried away through the flexible pipe 20, the oil Which separates itself from the fumes Within the cap 12 is returned to the crank case for further use, this being accomplished by providing the tubular member 18 with an oil return opening 22 located `immediately adj acentthe bottom 14: of the cap. The entire device can be quickly and conveniently associated With or removed from the breather pipe l1 as the occasion may require.

l/Vhile it is believed that from the foregoing description the nature and advantages of the invention Will be readily apparent We desire to have it understood that We do not -limit ourselves to What is herein illustrated or described and that such changes may be resorted to as fall Within the scope of What is claimed.

What is claimed is:

1. A breather pipe cap comprising a vertical body portion closed at the top and bottom, and open-ended tubular member extending Lsoaces relation to and adjacent the top of said body portion, said tubular member being adapted for connection With the breather pipe to convey the exhaust therefrom into said one compartment, said tubular member having a transverse oil return opening therethrough Within and adiacent the bottom of said body portion, and a lateral outlet pipe leading from the other of said compartments adjacent the upper end of the body portion.

3. A breather pipe cap comprising a vertical body portion closed at the top and bottom, an open-ended tubular member extending into the body portion through its bottom and spaced from the top thereof, said tubular member being adapted for connection With the breather pipe to convey the exhaust therefrom into Vsaid body portion, said tubular member having a transverse oil return opening therethrough Within and adjacent the bottom of the body portion, and a lateral outlet pipe projecting from the body portion adjacent its upper end, said tubular member having a projecting lower end adapted to be positioned in the breather pipe and provided With an annular bead adapted to repose on said breather pipe.

In testimony whereof We affix our signatures.

ANDY T. TAYLOR. OLLIE B. WILHITE.

into the body portion through its bottom and spaced from the top thereof, said tubular member being adapted for connection With the breather pipe to convey the exhaust therefrom into said body portion, said tubular member having a transverse oil return opening therethrough Within and adjacent the Vbottom of the body portion, and a lateral outlet pipe projecting from the body portion adjacent its upper end. Y

y 2. A breather pipe cap comprising a vertical body portion closed at the top and bottom, a partition depending from the top of the body and terminating in spaced relation to the bottom thereof, said partition dividing the body into two compartments, an openended tubular member extending through the bottom of said body portion into one of said compartments and terminating in spaced 

